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公开(公告)号：US08783477B2
公开(公告)日：2014-07-22
申请号：US12893641
申请日：2010-09-29
IPC分类号： B66C13/18
摘要： A pipelayer providing higher lifting capacities without adding weight or size to an undercarriage or boom of the pipelayer is disclosed. The pipelayer is designed and sized to have a maximum lifting capacity when the boom is extended from the undercarriage a predetermined, relatively short distance. However, in use the boom often needs to extend further away from the undercarriage, and in so doing the lifting capacity of the pipelayer decreases. The present disclosure provides additional lifting capacity in that extended range by selectively deploying a counterweight away from the undercarriage once the boom is extended past the predetermined distance. In so doing, not only is the lifting capacity of the pipelayer increased, but the size and weight of the undercarriage and boom are not increased. This enables standard sized undercarriages and other supporting structure to be used, thereby aiding in maneuverability and shipping of the pipelayers, while at the same time reducing manufacturing and usage costs.
摘要翻译： 公开了一种提供更高提升能力的管道铺设机，而不增加管道铺设机的起落架或起重臂的重量或尺寸。 当吊架从起落架延伸预定的相对较短的距离时，管道铺设设计和尺寸以具有最大的提升能力。 然而，在使用中，吊杆通常需要远离起落架延伸，并且在这样做时，铺管板的提升能力降低。 本公开通过在悬臂延伸超过预定距离的情况下通过选择性地将配重远离起落架部署而提供在该扩展范围内的额外提升能力。 这样做不仅可以提高铺管机的起重能力，而且起落架和吊臂的尺寸和重量也不会增加。 这使得能够使用标准尺寸的底架和其他支撑结构，从而有助于管道铺设机的可操作性和运输，同时降低制造和使用成本。
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公开(公告)号：US20110084044A1
公开(公告)日：2011-04-14
申请号：US12893641
申请日：2010-09-29
摘要： A pipelayer providing higher lifting capacities without adding weight or size to an undercarriage or boom of the pipelayer is disclosed. The pipelayer is designed and sized to have a maximum lifting capacity when the boom is extended from the undercarriage a predetermined, relatively short distance. However, in use the boom often needs to extend further away from the undercarriage, and in so doing the lifting capacity of the pipelayer decreases. The present disclosure provides additional lifting capacity in that extended range by selectively deploying a counterweight away from the undercarriage once the boom is extended past the predetermined distance. In so doing, not only is the lifting capacity of the pipelayer increased, but the size and weight of the undercarriage and boom are not increased. This enables standard sized undercarriages and other supporting structure to be used, thereby aiding in maneuverability and shipping of the pipelayers, while at the same time reducing manufacturing and usage costs.
摘要翻译： 公开了一种提供更高提升能力的管道铺设机，而不增加管道铺设机的起落架或起重臂的重量或尺寸。 当吊架从起落架延伸预定的相对较短的距离时，管道铺设设计和尺寸以具有最大的提升能力。 然而，在使用中，吊杆通常需要远离起落架延伸，并且在这样做时，铺管板的提升能力降低。 本公开通过在悬臂延伸超过预定距离的情况下通过选择性地将配重远离起落架部署而提供在该扩展范围内的额外提升能力。 这样做不仅可以提高铺管机的起重能力，而且起落架和吊臂的尺寸和重量也不会增加。 这使得能够使用标准尺寸的底架和其他支撑结构，从而有助于管道铺设机的可操作性和运输，同时降低制造和使用成本。
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公开(公告)号：US5095188A
公开(公告)日：1992-03-10
申请号：US558232
申请日：1990-07-26
申请人： Kevin J. Klein
发明人： Kevin J. Klein
CPC分类号： B29C65/08 , B06B3/00 , B29C66/73921 , B29C66/80 , B29C66/9512 , B29C66/81463 , B29C66/9513
摘要： A horn for coupling high frequency vibrations from an electroacoustic converter unit to a workpiece, such as is used for welding thermoplastic workpieces by ultrasonic vibrations, is constructed by machining sections of the horn and welding the sections together using electron beam welding or laser beam welding. The respective sections can be made from bar or plate stock.This construction eliminates the machining of deep, inaccessible slots, and as most of the surfaces to be machined are accessible, a fine surface finish can be provided, thus eliminating tool marks which cause the existence of areas of high mechanical stress concentrations when the horn is rendered resonant. Also significant economic advantages are achieved when manufacturing large, massive slotted horns in this manner.
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